Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Tradesman (Electronics) - DEPARTMENT : Technical Education ' And exam conducted in the year 2022. And Question paper code was '102/2022'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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The following has it’s working based on electromagnetic induction :
(A) Voltmeter (B) Transformer
(@) Ammeter (D) Galvanometer
A static device which increases or decreases AC voltage without changing the frequency of
the supply 18 :
(A) Alternator (B) Inverter
(C) DC generator (D) Transformer
When an alternating voltage is applied to a pure inductor, the resultant alternating current
through the inductor is :
(A) Leading by 90° (B) Lagging by 90°
(C) Leading by 180° (D) Lagging by 180°
Tf one thousand watts lamp is used for one hour, it consumes an energy of :
(A) 1kwh (B) 10wh
(C) 0.1 kwh (0) 0.01 wh
The working principle of single phase induction motor is :
(^) Joule’s law
(2) Faraday’s Laws of electromagnetic induction
(೮) Lenz’s law
൩) Faraday’s laws of electrolysis
The magnetic field produces by a single phase induction motor 15 :
(ಹ) Rotating magnetic field (B) Stationary magnetic field
(C) Steady magnetic field 0) Pulsuating magnetic field
n an induction motor a measure of the difference between the machine’s synchronous speed
and it’s shaft speed 18 :
(^) Slip (B) Synchronous speed
(C) Rotor speed (D) Stator speed
The important property of Fuse wire is :
(A) Low specific resistance and high melting point
(B) High specific resistance and high melting point
(C) High specific resistance and low melting point
(D) Low specific resistance and low melting point
5 102/2022
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